Movement is the German manual-wind Lange in-house caliber L951.5 with 34 jewels (4 screwed gold chatons), 18,000 vph and a power reserve of 60 hours.

Decorated and assembled by hand; precision-adjusted to five positions; plates and bridges made of untreated German silver; balance cock engraved by hand, lever escapement.Shock-resistant balance with eccentric poising weights, precision beat adjustment system with lateral setscrew and whiplash spring.

It has a solid silver dial, finished in black, with rhodiumed gold hands; chronograph sweep seconds hand made of rhodiumed steel. Pulsimeter scale on the outer ring of the dial and a railway-track minute scale.

It comes on a black hand-stitched alligator leather strap with an 18kt white gold prong buckle.